Lock



5 0 l, 00 O0 1 m, E T S L E K W F vS M A 2 9 1 5 2 m r m LOCK Filed Feb.28, 1922 T IL 72 I z W. L.

m VzimoR Patented Mar. 25, 1924.

MORRIS S. FINKELSTEIN, OF NEW YORK, N. Y.

LOCK.

Application filed February 28, 1922. Serial No. 539,867.

To all whom it may concern:

Be it known that MORRIS S. FINKELSTEIN,

a citizen of the United States, and a resident of New York city, in thecounty of New York and State of New York, has invented certain new anduseful Improvements in Locks, of which the following is a specification.

My invention relates to looks and especially to looks for use with doorsmounted on hinges and opening outward.

The object of my invention is to provide a lock and bolt constructionadapted to be operated by a key and an extra brace-bolt which is carriedinto locked position by the primary bolt, and thus provide a lock ofexceptional strength.

Referring to the drawings which form a part of this specification,

Figure 1 is a front elevational view of my lock construction shownpartly in section and in locked position.

Figure 2 is a similar View lock in unlocked position.

Figure 3 is a side view of the construction illustrated in Figures 1 and2.

Figure 4 is a side view illustrating a modified form.

A, indicates a portion of a door which opens outwardly, the view beingtaken from the inside of the door on which side the lock is located. B,indicates the lock frame and D indicates the door frame. C, indicatesthe brace-frame which is made of strong metal and is mounted on the doorframe as illus trated, said frame comprising an opening C to receive theend of the main bolt and a plate portion C extending at a right anglethereto and preferably formed integral therewith.

The lock-frame B is provided with a suitable slot in which is locatedthe main bolt E, which when in locked position extends into the usualrecess formed in the door frame D.

The main bolt E is provided with a transverse slot E in which the upperend of the brace-bolt F is adapted to fit and be carried into a recess Gformed in the lockframe, by the main bolt E in its locking movement. Thelower end of the brace-bolt is located in a rectangular shaped tube I-Iformed integral with the plate portion C in which it fits in slidingrelation. The lock showing the I is provided with a lever I which in itsrotational movement enters the slot J formed in the main bolt to movethe bolt. In Figure 4 a modified form is shown in which the brace-boltextends through an opening K formed in the plate C instead of the tubeconstruction II. It will be seen that if the main bolt should be sawedoif on the line XX of Figure 1, the brace bolt still secures the door.

The operation is as follows:

Assuming the main bolt to be in unlocked position and the door closed:The brace-bolt is positioned as shown in Figure 2 and when the look I isoperated by a key the latch I enters the slot J and forces the main boltinto locked position as shown in Figure 1, the bolt E extending into thecasing D and the brace-bolt F being carried into the re cess G and underthe overhanging plate G of the lock-frame thus securing the door withtwo bolts both of which are controlled by a single key.

Having thus described my invention I claim as new:

1. A look comprising a frame and a plate portion, said frame having aslot and recess therein, a main bolt carried by said frame, a brace boltslidably mounted on said plate portion adapted to cooperate with saidslot and recess and controlled by said main bolt.

2. A look comprising a frame and a plate portion in said frame havingavertical slot and a recess adjacent thereto, a main bolt carried by saidframe and adapted to be operated by a key, a right angle brace bolt, onearm of which is slidably mounted on said plate portion, the other arm ofsaid bolt engaging said main bolt and cooperatingwith said slot andrecess.

3. A look comprising a frame and a plate portion, said frame having avertical slot and a recess formed adjacent thereto, and a main boltslidably mounted on said frame, a brace-bolt carried by said plateportion and adapted to enter said slot and recess and operated by saidmain bolt.

Signed at New York, in the county of New York and State of New York,this 15th Al D. 1922.

MORRIS S. FINKELSTEIN.

Witness FRANK M. ASHLEY.

day of February,

